Oh! Oh, like Halley's comet. Exactly.

噢! 哈的哈，是的。

Comet Halley's water is similar to that on Earth.

哈的水相似于地球。

The 1910 return of Halley’s Comet was particularly great one.

1910年哈的回归是非常棒的一件事情。

In 1910, Earth passed through the tail of Comet Halley.

1910年，地球穿过了哈的尾。

Halley's Comet follows a path with an eccentricity of approximately 0.97.

哈的轨道的离心率约为0.97。

Haley's Comet, now NASA knows of about 3,600 other comets than that one out there.

除了哈，科学家知道的其他还有3600。

Probably the most famous comet in history is Halley's comet.

可能历史上最著名的就是哈了。

So we don't know whether Comet Halley was in fact representative of all comets.

因此们不知道哈是否是最有代表的。

My sister got to be Halley's Comet. I was very jealous.

妹妹就分到了哈 当嫉妒。

Halley’s Comet is the one that’s most famous to all of us, isn’t it?

们大家最熟悉的一是哈，对吧？

Below that, a pictograph may mark the sighting of Hailey's Comet in 1066.

其下方的象形文字则可能记录的是1066年哈经过地球的景象。

Halley's Comet, now NASA knows of about 3,600 other comets than that one out there.

除了哈，美国航空航天局对大约3600其他类型的也有所了解。

To those wondering what an extreme ellipse could be, there's a great example to look at Halley's Comet.

对于那些想知道什么是极端椭圆的人来说，有一个好的例子，那就是哈。

Some call him the Grandfather of the Fly-By because his research helped in the exploration of Mercury, Saturn and Halley's Comet.

一些人称他为低空飞越的鼻祖，因为他的研究助力了水、土和哈的探索。

Halley's comet, which appears only once every 76 years, streaked across the sky that night.

哈每76年才出现一次， 当晚划过天空。

Most of Halley's nucleus is covered in thick dust laced with darker molecules, with only a few spots emitting gas.

哈的大部分核都被厚厚的尘埃所覆盖，其中有一些颜色较深的分子，只有少数几个点在释放气体。

Comet Halley, for example, is shown in the Bayeux Tapestry, which depicts the Norman invasion of the British Isles in the year 1066.

例如，哈出现在贝叶挂毯上，描绘了1066年诺曼人入侵不列颠群岛的情景。

On April 21, 1910, with Halley's comet blazing into view for the first time since his birth, Mark Twain died.

1910 年 4 月 21 日， 随着哈在他出生后第一次闪耀在视野中，马克吐温去世了。

Though some (like Halley's) have known orbits, most sweep in from the farthest reaches of the solar system, with little notice of their arrival.

虽然有些(如哈)的轨道已经确定，但大多数是从太阳系最远的地方接近的，人类几乎无法观测到它们的来临。

Halley's comet, which flies past the sun every 75 years or so and is easily visible from Earth, is about 15km across.

哈大约每 75 年飞过一次太阳， 从地球上容易看到它，直径约为 15 公里。